Aggregate JS Breaks Website

I’m trying to speed up the website and have added Autoptimize and Async Javascript. The website loads with no errors with Autoptimize settings:
– optimize JS
– aggregate JS

But when I activate Async (async with jQuery excluded) the site won’t load. Only get a loading icon and I get these errors messages in console:

autoptimize_850ce0c6f676059d8cd6a58517bf0bce.js:63 Uncaught TypeError: a(...).bsf_appear is not a function
    at HTMLDivElement.<anonymous> (autoptimize_850ce0c6f676059d8cd6a58517bf0bce.js:63)
    at Function.each (jquery.js?ver=1.12.4-wp:2)
    at a.fn.init.each (jquery.js?ver=1.12.4-wp:2)
    at HTMLDocument.<anonymous> (autoptimize_850ce0c6f676059d8cd6a58517bf0bce.js:63)
    at i (jquery.js?ver=1.12.4-wp:2)
    at Object.add [as done] (jquery.js?ver=1.12.4-wp:2)
    at a.fn.init.n.fn.ready (jquery.js?ver=1.12.4-wp:2)
    at autoptimize_850ce0c6f676059d8cd6a58517bf0bce.js:63
    at autoptimize_850ce0c6f676059d8cd6a58517bf0bce.js:63
(anonymous) @ autoptimize_850ce0c6f676059d8cd6a58517bf0bce.js:63
each @ jquery.js?ver=1.12.4-wp:2
each @ jquery.js?ver=1.12.4-wp:2
(anonymous) @ autoptimize_850ce0c6f676059d8cd6a58517bf0bce.js:63
i @ jquery.js?ver=1.12.4-wp:2
add @ jquery.js?ver=1.12.4-wp:2
n.fn.ready @ jquery.js?ver=1.12.4-wp:2
(anonymous) @ autoptimize_850ce0c6f676059d8cd6a58517bf0bce.js:63
(anonymous) @ autoptimize_850ce0c6f676059d8cd6a58517bf0bce.js:63

I will disable Async for now.

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